Coulomb's Law and Charge

How strong is the attractive force between a glass rod with a 0.700μC charge and a silk cloth with a –0.600μC charge, which are 12.0 cm apart, using the approximation that they act like point charges?

• -3.5 x 10^-2 N

• -263 N

• -0.263 N

• -3.5 x 10² N

• -0.315 N

Tags

NGSS.HS-PS2-4

A point charge (q1) has a magnitude of 3x10^-6 C. A second charge (q2) has a magnitude of -1.5x10^-6 C and is located 0.12 m from the first charge. Determine the electrostatic force each charge exerts on the other.

• -4.52 x 10^-3 N

• -83 N

• -2.81 N

• -9 x 10³ N

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

What does the "q" represent in Coulomb's Law?

• quarks

• quantum

• charge

• coulomb's constant

Tags

NGSS.HS-PS2-4

What does the "r" represent in Coulomb's Law?

• radius of the electron

• distance between charges

• radius of the proton

• distance a charge will travel

Tags

NGSS.HS-PS2-4

If the distance between two charges is halved, how does the force between them change according to Coulomb's Law?

• It is halved

• It is quartered

• It is doubled

• It increases by four times

Tags

NGSS.HS-PS2-4

According to Coulomb's Law, what happens to the force between two charges if the charge of one is tripled and the distance between them is also tripled?

• The force remains unchanged

• The force is tripled

• The force is nine times greater

• The force is reduced to one-third

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

What does Coulomb's Law describe?

• The relationship between electric current and magnetic fields

• The force between two charges being directly proportional to the product of their charges and inversely proportional to the square of the distance between them

• The rate of flow of electric charge

• The resistance offered by a material to the flow of electric current

Tags

NGSS.HS-PS2-4

A negatively charged particle is

• An Electron

• A Proton

• A Neutron

• A Negatron

What is the unit of electric charge?

• Joule

• Newton

• Coulomb

• Ampere

Which of the following is NOT a property of electric charge?

• Quantization

• Conservation

• Invisibility

• Transferability